The Hullcracker in Arc Raiders is a powerful special pump-action grenade launcher designed to fire explosive projectiles that detonate only upon hitting ARC targets.
What the Heavy Gun Parts Blueprint Is
The Heavy Gun Parts blueprint is a crafting recipe in Arc Raiders. It lets you unlock the ability to craft Heavy Gun Parts at your Refiner bench (Refiner II required). Without learning this blueprint, you can't make Heavy Gun Parts yourself. Once learned, the recipe becomes a permanent part of your crafting options until you reset or start a new progression.
Heavy Gun Parts themselves are used as crafting components for some weapons, upgrades, and more advanced items/components in refineries and gun construction.
Key Features:
- Ammo Type: Launcher Ammo
- Firing Mode: Pump-Action
- Magazine Size: 5 rounds
- Damage: 100
- Fire Rate: 20.3 shots per minute
- Range: 38.9 meters
- Stability: 97.2
- Agility: 67.9
- Stealth: 1 (minimal impact on stealth)
Hullcracker Blueprint Quest & How to get it?
The Hullcracker can be obtained through several channels:
- Scavenging: Found in various locations throughout the game world.
- Crafting: To craft the Hullcracker, you'll need to acquire its blueprint, which is rewarded through the quest The Major's Footlocker.
- Vendors: You can purchase the Hullcracker from Tian Wen, a vendor specializing in various equipment.
Crafting:
To craft the Hullcracker, players need to gather the following materials:
- 1x Magnetic Accelerator
- 3x Heavy Gun Parts
- 1x Exodus Modules
The crafting process requires a Gunsmith 3 level and the Hullcracker blueprint.
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Where to Find the Heavy Gun Parts Blueprint
There isn't a specific fixed “quest” that hands you this blueprint. Instead, it's loot-based — you must find it in the world. The Heavy Gun Parts blueprint comes from general scavenged loot in the topside world during missions and raids, especially in areas with good loot density.
Here are some practical places and tips most players use:
1. Explore High‑Loot Zones
- Areas with lots of containers and caches — like rooftops, towers, and elevated structures — tend to yield more blueprints.
- One player reported finding this blueprint on top of a water tower on the Dam map during a weather event.
2. Loot Weapon and Container Spots on Maps
- Locked lockers, weapon crates, and other high‑tier loot spots on maps such as Dam Battlegrounds, Stella Montis, Spaceport, and others often contain blueprints.
- Searching these zones thoroughly increases your odds.
3. Conditions That Help Loot Drops
- Running night missions and electromagnetic storms increases the overall drop rate of rare blueprints (not guaranteed).
4. Repeat Runs
- Blueprint drops are somewhat random. You may not get the Heavy Gun Parts blueprint early. Repeated runs and checking all loot containers on each run is a practical approach.
There's no set NPC or structured quest that leads you directly to this blueprint — it's part of the loot pool you get from scavenging containers and world loot.
How to Learn and Use the Blueprint
Once you find the Heavy Gun Parts blueprint in loot:
- Open your inventory.
- Find the blueprint item in your loot list.
- Select it and choose “Learn and Consume.” That teaches the blueprint and removes the item.
After that you can craft Heavy Gun Parts at a Refiner II bench. This lets you convert simpler materials into the heavy parts needed for more complex weapons and upgrades.
What You Can Use Heavy Gun Parts For
Heavy Gun Parts are not generally a final product you use directly on a weapon — they're a crafting component:
- Combine them with other materials to make advanced components like Complex Gun Parts.
- They also appear in the recipes for higher‑tier weapons (for example, guns that require heavy parts as one ingredient).
In short, they are a mid‑tier crafting ingredient that keeps your progression moving toward better gear.
Tips for Efficient Blueprint Hunting
- Plan runs through high‑loot maps rather than casual exploration. Areas with large containers and rare loot spots give better chances.
- Use traversal tools (like ziplines or snap hooks) to reach elevated loot spots where players often put higher‑tier blueprints.
- Check every container you see. Blueprint drops are random, and missing even one container lowers your chance of finding what you need.
- Prioritize weather and night conditions if you want faster blueprint farming, as many players report these conditions boost blueprint availability (though not guaranteed).
Upgrades
The Hullcracker can be upgraded to higher versions, each providing significant improvements:
- Hullcracker II: Requires Hullcracker I + Advanced Mechanical Components + Heavy Gun Parts. Grants an 18% increase in fire rate and +10 durability.
- Hullcracker III: Requires Hullcracker II + Advanced Mechanical Components + Heavy Gun Parts. Grants a 35% increase in fire rate and +20 durability.
- Hullcracker IV: Requires Hullcracker III + Advanced Mechanical Components + Heavy Gun Parts. Grants a 53% increase in fire rate and +30 durability.
Repairing
To repair the Hullcracker, you'll need:
- Hullcracker I: 2x Advanced Mechanical Components, 1x Heavy Gun Parts (+50 durability)
- Hullcracker II: 2x Advanced Mechanical Components, 2x Heavy Gun Parts (+55 durability)
- Hullcracker III: 3x Advanced Mechanical Components, 3x Heavy Gun Parts (+60 durability)
- Hullcracker IV: 4x Advanced Mechanical Components, 4x Heavy Gun Parts (+65 durability)
Recycling & Salvaging:
- Recycling the Hullcracker yields Advanced Mechanical Components and Heavy Gun Parts.
- Salvaging provides additional Heavy Gun Parts.
Summary
- The Heavy Gun Parts blueprint is learned from scavenged loot.
- It doesn't come from a named quest — you find it in containers around the world.
- Once learned, it unlocks crafting of Heavy Gun Parts at Refiner II.
- Heavy Gun Parts are used to craft higher‑tier weapon components and other items.
This weapon is ideal for players who need a high-powered grenade launcher with the ability to break through ARC armor.
